Former Director, Robotic Mobility Group, MIT. Authority on robotics and autonomous vehicles. Opinion and commentary has been published and broadcast worldwide. Technical research has resulted in more than 150 technical papers, 20 issued or filed patents, and numerous edited volumes, including books on the DARPA Grand Challenge and Urban Challenge autonomous vehicle competitions. Work has found application in passenger vehicle safety systems, robotic surgery, and Mars surface exploration, among other domains. Author of fiction; writing has been translated into seven languages.